Why are investors so bullish on “neo-prime” defence companies such as Anduril? The firm’s president joins “Money Talks” https://www.economist.com/podcasts/2026/04/23/the-upstarts-shaking-up-the-defence-industry?taid=69ee52a8e23f1b000178e115&utm_campaign=trueanthem&utm_medium=social&utm_source=voante